Radio loud-speaxer receiver



WALKER RADIO LOUD SPEAKER RECEIVER Filled Feb, 29 1924 INVENTOR isppliczr'zion filed February 25), 1524.

l 0,75 unis-m 1% it" known m (1 gm; corn Ms ilmt I, HENRY illusion, s citizen of the ilnitecl States. residing at ii ihning ion in the county ofhlew Castle untlfitate 0 Delaware, have invented a cerijoil'i neu oncl usein lhuho Louclfipesker l 861; of which the following 18 :1 spec-1 on. Thisinveniion, generally stated, relates io radio equipment mul'ohas more espe :1 reon to .a loud fllUJl ieceivei" n-etor.

ie novel means Whereand more accurate re- ()iiiiffilllefii and. transmitpeaheilQL'QlYQ]? by a N 1 time comparatively .ni'z'on meu't parts which are the hose 0" the loud speekerzmd are m nowoy detrimental to the appearance Conventional loud speaker horns. fisher encl fu 'theiy objects reside in the provision of and ew arrangement and combination 211155 for attaining the foregoing object.

Theini'eniion vonsisis of the novel fesafter cl, bed and fiuall "Phonemic, ohsu'ac'rei'is u SLODQ of the invention will more, fully tood from the follow? description Li-O11 \"iih the meoingonying formin part thereof, and in 1 mpiesenis -vertiosl seosional VlCW of e novel radio loud speaker receiver, embodying my invention.

l3 2 represents s ofe zsehed View in plan of a noi el pper diaphragm, having a vioiatory Longue.

3 repr seni plan View of \fihe lower oiupragm hsvirg n stiffene een'tmi poriion, and

rspresor s View in elevation,

* sectional shown in Fig. l, applied sp 'ileei horn.

l. oi tho pui'nose of i Shilling my invenaccompanying ism-sizing the feeeiver to a radio loud lsof construc liion and mivsntage heroinsen- .1 so.

insti'uinenieliiies as herein shown and do.

scribed.

Hferringrhuu to the chmyings andxinoi'e especially io 1. 2 znul g. lclesignates :1 lower shell or easing. extex'ioi'ly threaded ul- 2; to vo-opemtivoly receive the inteli'nally shrouded lower pzu-ifof: an uppe shell or wisingi, which provided with a central tone passage r, whieh is internally thresdeel. Loveied within tholo w ei easing 1 the coils o? any eonVent-ionz -l type, and- Mlspied' who .ill'tid with re ece to 2;

zignpzu'atus in any, eonvenionsl1 11131131611 magnets'or coils 5, metal diaphragm 6;

the central portion of 'n'hieh is stiffened I at 7. In nineties o'ood results have been attoinecl by i'he en iploynient of a disc- 0f cork or similar material,hzn'ing its upper surface;

slightly convex as seen in 1, although and spaced therefrom by means of s ring- 8, above which is a Cllflplllilgln 9 which is superimposed on said ring The two disphiag ms with the ring: of metal orothel mstrinl flierehetvveen :ne clamped between the two casing elements 1 and 3, as Clearly shown in l? l and 4. Th upper din,- phl'ognn has centrally out therefrom a vibratory tongue l0 which i'ongue is spaced from the diaphragm proper by means of a Curved slot 11. The tongue 10 is arrzmge. concentrically of he diaphragm 5), is in i'egislei. or vertical zilig'nn'ient with fihe stiffened portion T of ii e (lisohragm 6. in operation, the vibrations of the diaphragm 6 create impulses in the resonance chamber 12 and sounal Waves in said resonance chamher when impinging upon the Vibrating tongue 10 instead of being confined an nu'ifii-erl have free egress through the slot 11 and result in well modulated, clear ancl accurate reproductions. The receiver ole,- ment in Fig. l, is shown as positioned Within the 13 of a loud speaker horn. 14 the positive and negaiive Wires 15 and 18 being extended tl'noughthe base wall to the magnets above lQSQIlQECL The construclion and function of the horse-shoe msgnets l7 and the soils or eloctromsgnets Will he fumiiizn' to those'sliilled in the art. The

or loud speaker 14, may be conneoteci v. its nose and the upper casing section 3 i: suitable inanneiz on? I prefei'ablvlosiiionml iiunieiliatelj' above the QlGC'iX'O- ated as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiments thereof which have been-found in practice to give satisfactory and reliable results, it is to be understood that the same are susceptible of modification in various partied,

lars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A radio loud speaker receiver, comprising a casing element having a magnet and coils therein, a casing element having a tone passage therein and spaced apart diaphragms clamped between said casing elements of which one diaphragm has a central stiflened portion and the other has a vibratory tongue in register with said stiffened portion.

2. A radio loud speaker receiver, comprising a sectional casing, its lower portion having a magnet and coils therein, an upper portion having a tone passage therethrough and spaced apart diaphragms clamped between said casing sections, one diaphragm having a central stiffened portion and the other a .vibratory tongue in register with said stiffened portion, and a ring interposed between said diaphragms.

3. A radio loud speaker receiver, comprising a casing section having a magnet and coils therein, a casing section having a tone passage therein and spaced apart diaphragms clamped between said casings, the lower diaphragm having a central stiflened, disc-like portion and the upper having a vibratory tongue in register with said stiffened portion.

4. A radio loud speaker receiver, comprising a casing section having a magnet and coils therein, a casing section having a tone passage therein and spaced apart diaphragms clamped between said casing sections, of which one diaphragm has a central stifiened, convcxed, disc-like portion and the other has a vibratory tongue in register with said stitl'ened portion.

5. In a radio loud speaker receiver, a casing section, having a magnet and coils therein, a casing section having a tone passage therethrough, spaced apart diaphragms clamped between said casing sections of which one diaphragm has a central stiiiened portion and the other has a vibratory tongue out from the diaphragm body and having a passage partially surrounding said tongue, which tongue is in register with said stittened part, a base within which said sections are contained, and a horn having its lower portion provided with a shoulder resting on said base and its lower end threaded into the upper of said casing sections.

In testimony whereof, I have hereunto signed my name.

HENRY VALKER. 

